Combined dolly rail and track assembly



FIG. 1 is a top perspective view of the design for a combined dolly railing and track assembly;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a right side elevational view thereof; and,

FIG. 7 is a top plan view thereof.

The broken-away disclosure in FIGS. 1 and 4 through 7 is a conventional drafting technique which is understood the represent a continuation of the design uniforming along any length. 

The ornamental design for a combined dolly rail and track assembly, as shown and described. 